|Tie|Home Team|Score|Away Team|Attendance|
|---|---|---|---|---|
|1|Aylesbury United|2-2|Windsor & Eton|847|
|2|Burscough|5-0|Wakefield & Emley|437|
|3|Dover Athletic|0-3|Forest Green Roves|932|
|4|Farnborough Town|2-0|Halifax Town|863|
|5|Gloucester City|1-1|Southport|1,237|
|6|Havant & Waterlooville|3-0|Hayes|456|
|7|Margate|0-2|Tamworth|971|
|8|Yeovil Town|2-1|Northwich Victoria|4,469|

Question: at most, how many of these teams have never scored a goal?
Answer: 5